Speed-indicator.



H. O. WOOD.

SPEED INDICATOR. APPLICATION FILED JUNE. 1915.

1,204,928. Pat-Qnted Nov. 14,1916.

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* rnvirnn STATES PATENT orrion.

HENRY OTWOOD, 0F MAINESBURG, PENNSYLVANIA, A-SSIGNOR 0F ONE-HALF TO ELMEB N. ROSE, OF MAINESBURG, FENNSYLVANIA.

SPEED-INDICATOR.

To azz whom zt may concern "Be it known that I, HENRY OQWooD, a

citizen of the United States, residing at Mainesburg, 1n the county of Tioga and State of Pennsylvania, have invented new and useful Improvements in Speed-Indicators, of which the following is aspecification.

This invention relates to speed indicators, and it has particular reference to a speed indicator adapted to be used in connection with a cream separator for the purpose of indicating when a predeterminedrat'e of rotation of a driving shaft is exceeded.

The invention has for its object to produce a simple and improved device of the class described whereby Warning will be given when a predetermined rate of speed is ex ceeded.

A further object of the invention is to produce a simple and improved device of the class described which may be readily adjusted to various positions whereby the predetermined speed rate may be varied.

A further object of the invention is to produce a device of the class described including a sounding bell and a striking element supported for movement diametrically with respect thereto in such fashion as to strike the bell at one limit of its movement, the striker being obstructed at the opposite limit of its movement by a sound deadening element.

With these and other ends in View which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawing has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarilymade to the precise structural details thereinexhibited, but that changes, alterations andmodifications within the scope of the claims may be resorted to when desired.

In the drawing,Figure 1 is a side elevation showing the invention applied to the crank of a separator. Fig. 2is a similar view indicating a different position of the crank. Fig. 3 is a sectional view, enlarged, taken on the line 3-3 inaFig. 2, but omitting Specification of Letters Patent. 7 Patented NOV. 14,1916. A pplic'ation filedJune 24 1915." Serial no; 36,118. I

the separator crank. 'Fig. "4; is a sectional view taken on the line in Fig. 3. Fig. 5 is a perspective detail view partly in section illustrating a slight'modification.

Corresponding parts in the several figures are denoted by like characters of reference.

The bell 15 is secured on an arm 16 by means including two bolts 17 between which is positioned a tube 18, the latter being clamped and held between the bolts l7,'as clearly seen in Fig. 4. The tube 18 is disposed within theconcave portion of the bell with respect to which it is approximately diametrically disposed. One end of'the tube is obstructed by a sound deadening member 19 of cork or other suitable material, the same being retained in position by means of a bolt 20 which also serves to secure the tube upon the arm 16. The tube contains. a striker 21 which is longitudinally .slidable therein, said striker consisting either of a ball, as seen in Fig. 3, or a cylinder, as seen in Fig. 5, the shape being immaterial as long as it will slidably engage the tube in such a manner as to strike the bell atone limit of its movement. The parts may be made of any desired material, metal being preferred. The arm 16 is made of such length as to extend beyond the bell at one end, forming a driven shaft T which may be manually rotated by means of a crank C having a handle H mounted on a rod or bolt B.

In practice, the improved device is mounted on the bolt B which may be tightened so as to secure the arm 16in adjusted position.

different number of rotations may be imparted to the shaft in a given period before the striker will be maintained by centrifugal force in constant engagement with the sound deadening element 19. Thus, at any given adjustment of the bell carrying arm, the bell Will be sounded by the striker once during each rotation of the shaft until a given speed is attained, when the bell will remain silent, thus indicating that the speed limit is being exceeded.

While the improved device may be em-- ployed for various purposes, it is especially adapted to be used in connection with cream separators where it is essential to success that the rotation should be at a certain predetermined rate which, in the absence of special th is apparatus, it is difficult or impossible to maintain. By the present invention, which is one of extreme simplicity, the operator will be instantly advised when the permissible speed rate is being exceeded, and an unskilled operator will thus be enabled to maintain the proper speed.

Having thus described the invention, what is claimed as new, is

1. A device of the class described comprising a bell, a guide extending diametrically across the bell, a striker slidably engaging the guide, the guide being provided with means independent of the bell for limiting the movement of the striker in one di rection, and means for supporting the device for orbital movement whereby-when a predetermined rate of speed is exceeded the striker will be maintained by centrifugal action out of engagement with the bell.

2. A device of the class described comprising a bell, a guide, a striker slidably engaging the guide and adapted to soundthe bell at onelimit of its movement, a sound deadening element limiting the movement of the striker in the opposite direction, and

means for supporting the device for orbital movement whereby when a predetermined rate of rotation is exceeded the striker will be maintained by centrifugal action in constant engagement with the sound deadening element.

3. In a device of the class described, a bell, an arm supporting the same, a tubular guide supported on the arm and extending diai'netrically across the bell, a striker slidable in the tube, and a sound deadening 0bstruction forming a closure at one end of the tube and lying in the path of the striker.

4:. In a device of the class described, a bell, an arm supporting the same, a tubular guide supported on the arm and extending diametrically across the bell, a striker slidable in the tube, a second deadening obstruction forming a closure at one end of the tube lying in the path of the striker, and a bolt whereby said obstruction and the tube are secured on the arm.

A driven shaft having a crank provided with a handle, an arm extending radially with respect to the handle and capable of being secured at various angular adjust ments with respect thereto, a bell carried by the arm, a guide extending across the bell in alinement with the arm, a striker slidable with respect to the guide, and means independent of the bell for limiting the movement of the striker in one direction.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY O. WOOD.

Witnesses 7M. BAGGER, H. HOUGI-I.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

- Washington, .D. O. 

